Curve Edit button
is function to adjust the linearization curve and the gray balance curve.
When is clicked, the following dialog appears.
The figure below shows the linearization curve.
To edit curves, use the mouse and the keyboard.
You can edit the curve indicating the control points (red).
The control points are shown at every 5% interval.
The color of the curve corresponds to the color of ink.
The curve shown in a solid line can be edited. The dotted line displays the initial state of the curve when the dialog was opened.